Remove log file

and be sure to exclude all futur .log
Linked with #2057
Fix redundant gitignore
Merge pull request #2069 from LeoColomb/Fix-LogFiles

Remove and ignore .log files.
Update ofColor

adding blueSteel
Merge pull request #2071 from danthemellowman/patch-2

Update ofColor
Update ofColor.h

bugfix-feature-zoolander
Merge pull request #2072 from danthemellowman/patch-4

Update ofColor.h
Merge branch 'develop' of https://github.com/openframeworks/openFrameworks.git into myDev_VS2012